uCOS-III transplant to a Cortex MCU

/**
  ***************************************************************************************
  * @file     uCos-III(a os which support round robin scheduling)transplant Project/main.c 
  * @author   Lx-technologies Team W.Long
  * @version  V0.1
  * @date     10/10/2012
  * @brief    Main program body.(some of the notes in this project shows my own opinion)
  * @hardware STM32F103RBT6 Cortex-M3(thumb2)
  ***************************************************************************************
  * @copy
  *
  * <h2><center>&copy; COPYRIGHT 2012 Lx-technologies Team </center></h2>
  */ 


/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "includes.h"    /*we put it here*/

/* OS Variables --------------------------------------------------------------*/
/*OS TCB*/
static  OS_TCB AppTaskStartTCB;
static  OS_TCB  task1TCB;
static  OS_TCB  task2TCB;
/*OS Stack*/
static CPU_STKAppTaskStartStk[128];
static  CPU_STK task1Stk[128];
static  CPU_STK task2Stk[128];
/*OS thread declaration*/
static void  AppTaskStart(void* p_arg);
static void  task1(void* p_arg);
static void  task2(void* p_arg);


void SysTick_Configuration(void);
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure;


/* Private function prototypes -----------------------------------------------*/
void Delay(__IO uint32_t nCount);
void LED_Configuration();
void Handle_Led(unsigned char,unsigned char);
/* Private functions ---------------------------------------------------------*/


/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f10x.c file
     */     
  OS_ERR err;
  /*hardware initial*/
  LED_Configuration(); /* Configure LED Pin */
  OSInit(&err);        /*Init uCOS-III*/
  /*create a StartTask*/
  OSTaskCreate(  (OS_TCB     *)&AppTaskStartTCB,               
                 (CPU_CHAR   *)"App Task Start",
                 (OS_TASK_PTR )AppTaskStart, 
                 (void       *)0,
                 (OS_PRIO     )3,
                 (CPU_STK    *)&AppTaskStartStk[0],
                 (CPU_STK_SIZE)12,
                 (CPU_STK_SIZE)128,
                 (OS_MSG_QTY  )0,
                 (OS_TICK     )0,
                 (void       *)0,
                 (OS_OPT      )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
                 (OS_ERR     *)&err);
/*task scheduling start*/
    OSStart(&err);      
while(1); /*will never reach here*/     
}


/**
  *@brief    task function body
  *@param    *p_arg:NULL
  *@retval   None
  *@author   Huawei technologies Co.Ltd W.Long
*/
static void AppTaskStart(void* p_arg)
{
   CPU_INT32U cpu_clk_freq;
   CPU_INT32U cnts;
   OS_ERR err;
   p_arg=p_arg; /*avoid warning*/
   CPU_Init(); /*Initialize the uC/CPU service*/
   cpu_clk_freq = BSP_CPU_ClkFreq(); /*Determine SysTick reference frequency*/
   cnts = cpu_clk_freq/(CPU_INT32U)OSCfg_TickRate_Hz; /*Determine nbr SysTick increments*/
   OS_CPU_SysTickInit(cnts); /*Initialize uC/OS periodic time source(System Tick)*/
   /*Create user's task in here*/
   OSTaskCreate(  (OS_TCB     *)&task1TCB,   /*API explaination:task control block is a struct which is implemented in os.h*/            
                 (CPU_CHAR   *)"task1", /*task name*/
                 (OS_TASK_PTR )task1, 
                 (void       *)0,
                 (OS_PRIO     )2, /*Priority of the task*/
                 (CPU_STK    *)&task1Stk[0], /*stack of the task*/
                 (CPU_STK_SIZE)12,
                 (CPU_STK_SIZE)128,
                 (OS_MSG_QTY  )0,
                 (OS_TICK     )0,
                 (void       *)0,
                 (OS_OPT      )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
                 (OS_ERR     *)&err);
/*we create task2 in here*/
OSTaskCreate(  (OS_TCB     *)&task2TCB,               
                 (CPU_CHAR   *)"task2",
                 (OS_TASK_PTR )task2, 
                 (void       *)0,
                 (OS_PRIO     )2,
                 (CPU_STK    *)&task2Stk[0],
                 (CPU_STK_SIZE)12,
                 (CPU_STK_SIZE)128,
                 (OS_MSG_QTY  )0,
                 (OS_TICK     )0,
                 (void       *)0,
                 (OS_OPT      )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
                 (OS_ERR     *)&err);
   while(1)
   {
     OSTimeDlyHMSM(0,0,0,999,OS_OPT_TIME_HMSM_STRICT,&err);/*dismiss the StartTask by suspending*/
   }


}
/**
  *@brief   task1 function body
  *@param   *p_arg:NULL pointer
  *@retval  None
  *@author Huawei technologies Co.Ltd W.Long
*/
static void task1(void *p_arg)
{
  OS_ERR err;
  p_arg=p_arg;
  while(1)
  {
    Handle_Led(1,1);
  OSTimeDlyHMSM(0,0,0,400,OS_OPT_TIME_HMSM_STRICT,&err);
Handle_Led(1,0);
OSTimeDlyHMSM(0,0,0,400,OS_OPT_TIME_HMSM_STRICT,&err);
  }
}
static void task2(void *p_arg)
{
  OS_ERR err;
  p_arg=p_arg;
  while(1)
  {  
Handle_Led(2,1);
  OSTimeDlyHMSM(0,0,0,800,OS_OPT_TIME_HMSM_STRICT,&err);
Handle_Led(2,0);
OSTimeDlyHMSM(0,0,0,800,OS_OPT_TIME_HMSM_STRICT,&err);
  }
}
/**
  * @brief  Inserts a delay time.
  * @param  nCount: specifies the delay time length.
  * @retval None
  */
void Delay(__IO uint32_t nCount)
{
  for(; nCount != 0; nCount--);
}
/* User functions ------------------------------------------------------------*/


/**
  * @brief      Initialize GPIO of LED 
  * @param      none
  * @retval     none
  * @programmer Huawei technologies Co.Ltd W.Long
*/
void LED_Configuration()
{
  GPIO_InitTypeDef GPIO_InitStructure;


  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB, ENABLE); 


  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2|GPIO_Pin_3; 
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;


  GPIO_Init(GPIOA, &GPIO_InitStructure);  
  GPIO_Init(GPIOB, &GPIO_InitStructure);
  /*turn off all of the led*/
  GPIO_SetBits(GPIOA,GPIO_Pin_2 | GPIO_Pin_3);
  GPIO_SetBits(GPIOB,GPIO_Pin_2);
} 
/**
  * @brief    Set LED status
  * @param    Led_Num:the serial number of LED
  * @param    Status: 0 represents turning off the led,1 represents turning on the led
  * @retval   None
  * @author   Huawei technologies Co.Ltd software designer W.Long
*/
void Handle_Led(unsigned char Led_Num,unsigned char Status)
{
   if(Status==1)
   {
     switch(Led_Num)
     {
       case 1:GPIO_ResetBits(GPIOA,GPIO_Pin_2);break;
  case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_2);break;
  case 3:GPIO_ResetBits(GPIOA,GPIO_Pin_3);break;
  default:break;
     }
   }
   else 
   {
     switch(Led_Num)
{
  case 1:GPIO_SetBits(GPIOA,GPIO_Pin_2);break;
  case 2:GPIO_SetBits(GPIOB,GPIO_Pin_2);break;
  case 3:GPIO_SetBits(GPIOA,GPIO_Pin_3);break;
  default:break;
}
   }
}
#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */


  /* Infinite loop */
  while (1)
  {
  }
}
#endif


/**
  * @}
  */


/**
  * @}
  */
/*
* @brief  handle SystemInit missing error
* @param  none
* @retval none
* @programmer:Huawei technologies Co.Ltd W.Long
*/
void SystemInit(void)
{
/*do nothing*/
}
/******************* (C) COPYRIGHT 2012 Lx technologies Co.Ltd *****END OF FILE****/